Add a CairoScript interpreter library and use it to replay the test output
for the CairoScript backend. The library is also used by the currently
standalone Sphinx debugger [git://anongit.freedesktop.org/~ickle/sphinx].
The syntax/operator semantics are not yet finalized, but are expected to
mature before the next stable release.
A limitation of the current API was that the destroy notifier was called
on the mime-data block. This prevents the user from passing in a pointer
to a managed block, for example a mime-data block belonging to a
ref-counted object. We can overcome this by allowing the user to specify
the closure to be used with the destroy notifier.
set_font_face was not consuming it's operand but blithely placing an
undefined font_face onto the operand stack, whereas set_source was
performing invalid exchanges on the stack.
Install the auxiliary library into the cairo subdirectory within the
lib path, so that it doesn't clutter $(libdir) and sets a precedent for
future auxiliary libraries.
Use the surface user-data array allow to store an arbitrary set of
alternate image representations keyed by an interned string (which
ensures that it has a unique key in the user-visible namespace).
Update the API to mirror that of cairo_surface_set_user_data() [i.e.
return a status indicator] and switch internal users of the mime-data to
the public functions.
Include a COPYING inside perf/, test/, util/ to clarify the licensing
conditions beneath the respective directories. This is because cairo
itself (libcairo.so) is LGPL-2.1/MPL-1.1 but that only relates to src/.
The auxiliary source files are under a mix of free licenses and we wish to
be clear just what license applies to each file.
In particular, cairo-trace needs to include the GPL terms and conditions.
This tool can be used to trace all the cairo function calls made by an
applications. This is useful for either extracting a test case triggering
a bug from an application, or simply to get a general idea of how an
application is using cairo.
After make install, cairo-trace program arguments, will print out all the
cairo calls to the terminal and also capture theme in ./program.$pid.trace
The format of the output is CairoScript, watch this space for more
cairo-script tools!
Quick summary of changes:
- Move list of cairo source files out of src/Makefile.am and into
src/Sources.mk,
- Generate files src/Config.mk and src/Config.mk.win32 that choose
the right set of source files and headers based on configured
backends and features. This drastically simplifies building
using other build systems. The src/Makefile.win32 file needs
to be updated to reflect these changes.
- Add README files to various directories,
- Add toplevel HACKING file.
Apparently glibc already provides the function:
void malloc_stats (void);
So, like we do for backtrace_symbols(), override the public symbol.
It still is defined as __destructor__ and runs at program finalization.
To build, do:
make malloc-stats.so
inside util/, and to use, run:
LD_PRELOAD=malloc-stats.so some-program
For binaries managed by libtool, eg, cairo-perf, do:
../libtool --mode=execute /bin/true ./cairo-perf
LD_PRELOAD="../util/malloc-stats.so" .libs/lt-cairo-perf
The code also includes Jeff Muizelaar's libbacktracesymbols that
is a much better implementation of backtrace_symbols() than what
is provided by glibc. That can be built by:
make backtrace-symbols.so
cairo_select_font -> cairo_select_font_face cairo_pattern_add_color_stop -> cairo_pattern_add_color_stop_rgba
by only substituting if the old name is not immediately followed by an underscore.
Tweak the substitution slightly to allow the script to be run on the cairo source itself, (eg. avoid changing the REPLACED_BY and DEPRECATED_BY macros that must mention the old names).
cairo_copy cairo_get_path cairo_get_path_flat cairo_matrix_create cairo_matrix_destroy cairo_matrix_copy cairo_matrix_get_affine cairo_surface_set_repeat cairo_surface_set_matrix cairo_surface_get_matrix cairo_surface_set_filter cairo_surface_get_filter
Also, eliminate all support for compiling against, or running with old, deprecated names for functions.
Deal with all of the removals.
